Mesoporous silica hosts for polyenzymatic catalysis

Lipases, oxidase and peroxidase have been immobilized or coimmobilized in mesoporous silica hosts by using a novel sol-gel procedure based on the use of lecithin as surfactant and lactose as enzyme protector. The resulting biocatalysts demonstrate high activities in various model reactions. Furthermore, the preparation procedure allows to generate in-situ hydrogen peroxide from glucose and oxygen, opening new perspectives for soft oxidation reactions.